Rasha (رشا) is the Arabic word for a young gazelle — an animal associated in Arabic poetry with grace and gentleness.
Rasha is widely used across the Arab world.
Rasha does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Rasha reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.